Improvement in sawing-machine



i 'luitd giedre gaben/t Qbiiiiw..

WILLIAM OLLER, OF SCENERY HILL, PENNYLVANI, ASSIGNOR TO HIM- SELIi1 ANI) JAMES D. ULERY, OF ,SAME PLACE.

Letters Patent N 96,948, dated. November 16, 1869.

IMPROVEMENT IN' SAWINGMACHINE.

The Schedule referred to in these Letters Patent and making of the same.

T0 u li/'hom @it may concern: I The pointed ends of the bars c form the fulcra for Be it known that I, Inman OLDER, of Scenery rour metallic levers (l d. d l1', which have transverse Hill, in the county of Washington, and State of Penngrooves for the reception of said pointed ends; said lesylvfmia have invented a new and improved Scrollvers being connected, at their inner ends, by means of Sawing Machine; and I do hereby declarefthat the spring-plates c e c e', with the upper and lower sawfollowing is a full, clear, and exact description of thc heads, and the upper and lower pairs of levers being construction and operation of the same, reference being jointed at their outer ends, by means of extensible had to the accompanying drawings,n1aking a part of connecting-rods, each of said rods being made in two this speGifiGa'iOn, in Wlli0ll parts, connected by a screw-bolt, h h, so that the con- Figure 1 is a side elevation, and necting-rods may be shortened or lengthened at pleas- 'Figuye 2 is a transverse vertical section. 4 ure, for the purpose of 'tightening or loosening the rIhis invention consists in mounting a saw in a frame frame.

consisting of two pairs of metallic levers, one pair at The frame thus constructed possesses sufficient ilexoach side of the saw; said levers having their fulcra ibiiity and elasticity to assume all the varying changes at the top and bottom of Vertical metallic bars, placed of sha-pe necessary in the rise and fall of the saw, and one at each side the Saw, and said levers being oonwithout opposing any hindrance to the motion of the nected with the saw by springs at the top and bottoni, saw, is strong enough to carry the latter through all and thc upper pair of levers being connected with the the movements required of it.

lower pair at their outer ends, by means of extensible The fnlcra of the levers d d being pointed, the latrods,by which the frame may be tightened orloosened, at ter move with the least possible friction.

pleasure, and is made at once Strong, flexible, and elas- The mechanism maybe driven by any sort of power,

tic, so as to admitof all the necessary movements of from a treadle to a steam-'engine the saw. I am aware that the several parts herein described, in the. drawingsseparately considered, are not new, and I therefore A is the wooden frame-work in which the machine wish it to be understood that I do not claim them; but is mounted, the gearing by which the motive-power is having thus described my invention, i

applied, being seen at the lower part of the same. What I do claim as new, and desire to secure by A rod, a', connects the crank-shaft with the saw- Letters Patent, is frame. 'lhe bars c, levers l d', spring-plates e e', and exten- .The metallic saw-heads l) l) have each two hooks, b' sible connectingrods h, combined and arranged, in b', one at right angles tothe other, so that the Saw connection with the cross-beam B, substantially as may be. placed in either direct-ion, and act either as a described.

scroll or 'as a Gi'O'SSCllt-Siw, i- Plea-Sure- To the above specification of my mprovement,lI

My saw-frame is a peculiarly novel and ingenious have set my hand, this 21st day of April, 1869.

arrangement. y WILLIAM OLLER.

It consists of two metallic bars c c, oblong in crossv e section, and pointed at top and bottom, as shown in fig. Witnesses:

1 said bars being firmly xed in the upper main cross- JOHN GRAYsoN, Jr.,

beam 1%, and projecting both above and below the same. A, M. TODD. 

